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Under the Influence 
November 20, 2014 
Dallas Independent School District 
By: ChinLin Pan, Hymi Ashenafi, 
Taylor Turner and Keneshia Colwell
Dallas ISD 
– Dallas ISD is the second-largest public school 
district in Texas and the 14th largest district in 
the nation. 
– The district has 220 schools with 157,000 
students, Pre K-12. 
– The district also employs nearly 20,000 
professionals.
Data items we looked at: 
• Teacher turnover rate: Percentage of 
teachers who left the district. Various 
reasons can contribute to the reason of 
departure, including demographics or 
salary. 
• Teacher-student ratio: This is the number 
of students per teacher. 
• High school graduation rates.
• We also looked at several neighboring 
districts of Dallas ISD, namely Plano, 
Garland and Richardson. 
• We looked at the turnover rate, teacher-student 
ratio and graduation rate of all four 
districts.
Map of districts we researched:
Here is a general map of Dallas and the 
bigger cities around it to give an idea 
of where Dallas is:
Steps taken to reach data source: 
• TEA Website 
• Clicked “Reports & 
Data” 
• Clicked “Academic 
Excellence 
Indicator” 
• Clicked the year 
“2011” 
• Clicked “districts”
Ed Timms Datasheet
Information on upcoming graphs: 
• We looked at turnover rates versus graduation rates and found 
a correlation. 
• The less of a teacher turnover rate, the more students 
graduate. 
• In each graph, we’ve compared all the listings side by side by 
district. 
• The Y axis is the percentage for each X category. Since 
graduation rates skewed the data, we divided the actual 
graduation rate by 10 to fit the graph visually. 
– Dallas: 77.3/%10= 7.73 
– Garland: 87.7%/10= 8.77 
– Richardson: 91.1%/10= 9.1 
– Plano: 93.4%/10= 9.34 
– These numbers are displayed in each graph as the smallest number 
listed above.
GRAPH 1 
• Here is a graph of Dallas ISD and its teacher-student 
ratio, turnover rate and graduation rate:
GRAPH 2 
• Here is a graph of Richardson ISD and its teacher-student 
ratio, turnover rate and graduation rate:
GRAPH 3 
• Here is a graph of Garland ISD and its teacher-student 
ratio, turnover rate and graduation rate:
Graph 4 
• Here is a graph of Plano ISD and its teacher-student 
ratio, turnover rate and graduation rate:
Trend we found: 
• The lower the teacher/student ratio, the higher the 
graduation rate. For example, Plano ISD has the lowest 
teacher/student ratio (14.5) and the highest graduation rate. 
(93.4%) 
• Richardson ISD has the second lowest teacher/student ratio 
(15.3) and the second highest graduation rate. (91.1%) 
• Dallas ISD has second highest teacher/student ratio (15.3) and 
the lowest graduation rate. (77.3%) 
• Garland ISD has the highest teacher/student ratio (15.9) and 
the second lowest graduation rate. (87.7%)

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TEA Data Presentation - Group 1

  • 1. Under the Influence November 20, 2014 Dallas Independent School District By: ChinLin Pan, Hymi Ashenafi, Taylor Turner and Keneshia Colwell
  • 2. Dallas ISD – Dallas ISD is the second-largest public school district in Texas and the 14th largest district in the nation. – The district has 220 schools with 157,000 students, Pre K-12. – The district also employs nearly 20,000 professionals.
  • 3. Data items we looked at: • Teacher turnover rate: Percentage of teachers who left the district. Various reasons can contribute to the reason of departure, including demographics or salary. • Teacher-student ratio: This is the number of students per teacher. • High school graduation rates.
  • 4. • We also looked at several neighboring districts of Dallas ISD, namely Plano, Garland and Richardson. • We looked at the turnover rate, teacher-student ratio and graduation rate of all four districts.
  • 5. Map of districts we researched:
  • 6. Here is a general map of Dallas and the bigger cities around it to give an idea of where Dallas is:
  • 7. Steps taken to reach data source: • TEA Website • Clicked “Reports & Data” • Clicked “Academic Excellence Indicator” • Clicked the year “2011” • Clicked “districts”
  • 9. Information on upcoming graphs: • We looked at turnover rates versus graduation rates and found a correlation. • The less of a teacher turnover rate, the more students graduate. • In each graph, we’ve compared all the listings side by side by district. • The Y axis is the percentage for each X category. Since graduation rates skewed the data, we divided the actual graduation rate by 10 to fit the graph visually. – Dallas: 77.3/%10= 7.73 – Garland: 87.7%/10= 8.77 – Richardson: 91.1%/10= 9.1 – Plano: 93.4%/10= 9.34 – These numbers are displayed in each graph as the smallest number listed above.
  • 10. GRAPH 1 • Here is a graph of Dallas ISD and its teacher-student ratio, turnover rate and graduation rate:
  • 11. GRAPH 2 • Here is a graph of Richardson ISD and its teacher-student ratio, turnover rate and graduation rate:
  • 12. GRAPH 3 • Here is a graph of Garland ISD and its teacher-student ratio, turnover rate and graduation rate:
  • 13. Graph 4 • Here is a graph of Plano ISD and its teacher-student ratio, turnover rate and graduation rate:
  • 14. Trend we found: • The lower the teacher/student ratio, the higher the graduation rate. For example, Plano ISD has the lowest teacher/student ratio (14.5) and the highest graduation rate. (93.4%) • Richardson ISD has the second lowest teacher/student ratio (15.3) and the second highest graduation rate. (91.1%) • Dallas ISD has second highest teacher/student ratio (15.3) and the lowest graduation rate. (77.3%) • Garland ISD has the highest teacher/student ratio (15.9) and the second lowest graduation rate. (87.7%)